We dyno tuned a 2011 CTS-V with just a cat back this morning, talk about a nice family hauler! Picked up 40 rwhp and 31 ft/lbs with the tuning alone, ending up with 515 rwhp and 497 ft/lbs tq. Love these LSA's, they respond really well to tuning and modifications.

I'm finishing up an intake/headers 2012 ZL1 (also LSA) right now on the dyno, results on that soon!

I still love these LSA blowers. The prices aren't what they used to be, but I just priced out an entire LSA setup, ever part NEW from GM with an AFCO HX and upgraded coolant pump and the price was still under 4k*. Cost of plumbing would bring things up a little but how can you beat that? Sure, you could put a turbo setup together for cheaper but to have such a simplistic, proven reliable setup that makes instant power and can support over 600whp easily for that price...it's a hell of a deal still.